sched/numa: Don't scale the imbalance
Commit-ID: 870a0bb5d636156502769233d02a0d5791d4366a Gitweb: http://git.kernel.org/tip/870a0bb5d636156502769233d02a0d5791d4366a Author: Peter Zijlstra <[email protected]> AuthorDate: Fri, 11 May 2012 00:26:27 +0200 Committer: Ingo Molnar <[email protected]> CommitDate: Mon, 14 May 2012 15:05:26 +0200
sched/numa: Don't scale the imbalance
It's far too easy to get ridiculously large imbalance pct when you scale it like that. Use a fixed 125% for now.
Signed-off-by Peter Zijlstra <[email protected]>
Signed-off-by Ingo Molnar <[email protected]>
--- kernel/sched/core.c | 7 +------ 1 files changed, 1 insertions(+), 6 deletions(-)
kernel/sched/core.c +1 -6
@@ -6261,11 +6261,6 @@ static int *sched_domains_numa_distance;static struct cpumask ***sched_domains_numa_masks;static int sched_domains_curr_level; -static inline unsigned long numa_scale (unsigned long x,int level) -{ -return x * sched_domains_numa_distance[level] / sched_domains_numa_scale; -} -static inline int sd_local_flags (int level) {if (sched_domains_numa_distance[level] >REMOTE_DISTANCE )
@@ -6286,7 +6281,7 @@ sd_numa_init(struct sched_domain_topology_level *tl, int cpu) .min_interval = sd_weight, .max_interval = 2*sd_weight, .busy_factor = 32, - .imbalance_pct = 100 + numa_scale(25, level), + .imbalance_pct = 125, .cache_nice_tries = 2, .busy_idx = 3, .idle_idx = 2,